In an acute attack of coronary heart disease, it is characterized by sudden severe chest pain, pale face, general weakness, sweating and a sense of near death, and even sudden respiratory arrest may occur. The following is a detailed explanation of the first aid methods of coronary heart disease attack! 1, immediate rest Coronary heart disease acute attack, the first thing to calm down, stop all activities, sit down or lie down to rest. Absolutely prohibit running and calling for help or walking to the hospital, otherwise it will increase the burden on the heart, increase myocardial oxygen consumption and make myocardial ischemia worse. Never be frazzled and overly nervous. 2, containing nitroglycerin Patients with a history of coronary heart disease should carry nitroglycerin and other emergency drugs, once the angina can be immediately sublingual nitroglycerin, about 2 to 3 minutes after the effect can be sustained for about half an hour, if a nitroglycerin still can not be relieved, you can take another one after two or three minutes. 3, to keep breathing open Coronary heart attack is often a manifestation of severe myocardial ischemia, so it is important to keep breathing open, which can relieve symptoms. If you are indoors, you can open the windows immediately to keep the air fresh, and untie the collar of the patient’s clothes and remove debris from the mouth in time to ensure the smooth flow of breathing channels. 4, cardiopulmonary resuscitation The most dangerous condition of the acute attack of coronary heart disease is that the patient has cardiac arrest, which is also the cause of death from coronary heart disease. At this time, emergency CPR must be performed on the patient. “Time is life” is a true reflection of this moment.